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论文类型：期刊论文

发表时间：2004-08-05

发表刊物：ORGANIC LETTERS

收录刊物：SCIE、PubMed

卷号：6

期号：16

页面范围：2757-2760

ISSN号：1523-7060

摘要：4-Piperidine-naphthalimide derivatives containing potential acceptors for hydrogen bonding were synthesized, and their fluorescence properties were examined. Some of the compounds with a 2-imino-oxalidin (thiazolidin) side chain at the imide moiety exhibit a strong fluorescence quench and some red shift in weakly acidic conditions, caused by the formation of an intramolecular hydrogen bond. Their pK(a), values were estimated to be about 6.4-7.5. The results showed that these compounds could serve as novel fluorescent pH sensors for further application.